Home / 655,128,421.80-982,692,632.70-605,243,826.60

Finding the Fourth Proportional to 655,128,421.80, 982,692,632.70 and 605,243,826.60

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Solution

The fourth proportional to 655,128,421.80, 982,692,632.70 and 605,243,826.60 is: 907,865,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,128,421.80 : 982,692,632.70 = 605,243,826.60 : x
  2. Step 2: Convert to fraction form
    655,128,421.80/982,692,632.70 = 605,243,826.60/x
  3. Step 3: Cross multiply
    655,128,421.80x = 982,692,632.70 × 605,243,826.60
  4. Step 4: Simplify right side
    655,128,421.80x = 594,768,649,386,976,384
  5. Step 5: Solve for x
    x = 594,768,649,386,976,384/655,128,421.80
  6. Step 6: Final answer
    x = 907,865,739.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.